CVE-2024-57273 json
Netgate pfSense CE (prior to 2.8.0 beta release) and corresponding Plus builds is vulnerable to Cross-site scripting (XSS) in the Automatic…
published 2025-05-14 17 mo ago modified 2026-07-27 3 mo ago also EUVD-2024-55005
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
Netgate pfSense CE (prior to 2.8.0 beta release) and corresponding Plus builds is vulnerable to Cross-site scripting (XSS) in the Automatic Configuration Backup (ACB) service, allowing remote attackers to execute arbitrary JavaScript, delete backups, or leak sensitive information via an unsanitized "reason" field and a derivable device key generated from the public SSH key.
Patch / fix
- netgate pfsense_ce 2.8.0
- netgate pfsense_plus 25.03
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 17 mo ago
Exploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.brillantit.com https://blog.brillantit.com/exploiting-pfsense-xss-command-injection-cloud-hijack/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
blog.brillantit.com
/exploiting-pfsense-xss-command-injection-cloud-hijack/
exploit, third-party-advisory
-
netgate.com
/blog/important-security-updates-for-pfsense-plus-24.11-and-ce-2.7.2
release-notes
-
docs.netgate.com
/downloads/pfSense-SA-25_03.webgui.asc
third-party-advisory
Sources
- CVE List CVE-2024-57273
- NVD CVE-2024-57273
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